Temperature detector and a temperature compensated oscillator us

Details Temperature detector and a temperature compensated oscillator us Temperature detector and a temperature compensated oscillator us

1991-09-30

1993-05-25

Cuchlinkski, Jr., William A.

Thermal measuring and testing

Temperature measurement

By a vibratory effect

374170, 310315, 310360, 331 66, G01K 1126, H01L 4108

Patent

active

052146685

ABSTRACT:
A temperature compensated oscillator and a temperature detector have a temperature sensor having a single case in which a pair of AT cut crystal resonator having substantially the same natural oscillation frequency and different cut angles from each other are accommodated. The crystal resonators each constitutes the resonance circuit of respective one of two oscillation circuits. A difference in frequency between the output frequencies of the oscillation circuits is representative of a detected temperature.

REFERENCES:
patent: 3826931 (1974-07-01), Hammond
patent: 3978432 (1976-08-01), Onoe
patent: 4551031 (1985-11-01), Ishikawa et al.
patent: 4558248 (1985-12-01), Valentin
patent: 4848923 (1989-07-01), Ziegler et al.
patent: 4872765 (1989-10-01), Schodowski
V. Candelier, Low Profile High Stability Digital TCXO, Symposium on Frequency Control, Jun. 1989 pp. 51-54.
Benjaminson, Albert, Factors Influencing Stability in the Microcomputer, May 1990 pp. 597-614.

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